symbols_ = {
    "<unk>": 1,
    "!": 2,
    "'": 3,
    ",": 4,
    ".": 5,
    " ": 6,
    "?": 7,
    "A": 8,
    "B": 9,
    "C": 10,
    "D": 11,
    "E": 12,
    "F": 13,
    "G": 14,
    "H": 15,
    "I": 16,
    "J": 17,
    "K": 18,
    "L": 19,
    "M": 20,
    "N": 21,
    "O": 22,
    "P": 23,
    "Q": 24,
    "R": 25,
    "S": 26,
    "T": 27,
    "U": 28,
    "V": 29,
    "W": 30,
    "X": 31,
    "Y": 32,
    "Z": 33,
    "~": 34,
}
